Question about 1987 Toyota Cressida

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Toyota 1ge engine 0n a Toyota mk 2 heavy fuel consumption

The fuel consumption is to high approximately 6 km per liter town driving

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  • Anonymous Mar 15, 2014

    black smoke heavy fuel consumption

  • Anonymous Mar 17, 2014

    my daihatsu charade 91 model 3 doors fuel consumption is 10km per liter what is the problem

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  • 119 Answers

It can be some reasons mybe cylinder head, inlet valve worn out.
it can be cuporator valve releasing more petrol into the inlet.
Brakes it can be. check contacpoint.

Posted on Oct 12, 2008

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Posted on Jan 02, 2017

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Does the driving on overdrive mode cause high fuel consumption, because the transmission use the first three ratios mostly?


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Repair ecm


why start with the most expensive part that is never bad.?
I5 engine. 4 cylinders. high MPG or high liters/100km

instead, why not check:
  1. CEL lamp glows running? oops. PCM is unhappy.
  2. no matter scan it. scan it with a obd2 scan tool (USA CAR?)
  3. first make sure the engine thermostat reaches 180F. more.
  4. then see if EFI holds closed loop mode,status at hot idle.
  5. If not we fix that 1st.
  6. Then we drive. and make sure at light flat cruise, closed loop holes. if not we fix that.
not guessing, just statistics.
1: fuel pressure i too high, , fuel reg stuck.
2: leaking injectors.
3: ECU stuck in limp home mode, and sucking fuel and has bad sensors.
4: exhaust pipe newer front oxygen sensor cracked, (sucks fuel now)
no cracks allows, or a bad oxy sensor here.
bank1 sensor 1 , replace at 100k miles for best L/km.
5: thermostat bad. runs cold .
6: FAILED to to the 100km tune up. bad. deal there.

there are simple tests in each case.
ask.

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hi I have an Isuzu kb 260le 4x4 I average between 8.5/9km/l in town driving traffic.i have fitted a branch ,powerflow exhaust system,rejetted carb with performance air filter.

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